"C", radiation.
The fireplace's heat is an example of radiation.
convection
convection conduction and radiation
Some of it is though you also get convection an conduction heat transfer
convection conduction radiation
conduction, convection, radiation
theres 3 convection, radiation, and conduction
Conduction, Convection, Conduction,Convection, Conduction, Radiation
Conduction
Radiation. Conduction is when one object takes heat from an object adjacent to it, like your hand on a hot plate. Convection is when heat travels through a gas or a liquid to get from one place to another, like a hair dryer to your hair. And Radiation is when heat travels through rays like the sun or a flame. Based on technicalities regarding the question, the flame can heat the surrounding air and travel to you, thus being a convection current.
Conduction.Convection.Radiation
convection